(Same as Earth, Planetary, and Space Sciences M156 and Electrical and Computer Engineering M185.) Lecture, three hours; discussion, one hour; outside study, eight hours. Requisite: course 110B or Electrical and Computer Engineering 101A. Senior-level introductory course on electrodynamics of charged particles and their collective behavior in plasmas in laboratory, near-Earth space and astrophysical settings. Covers selected applications taken from fusion energy, space weather, materials processing, generation of coherent radiation and particle accelerators. Letter grading.